Matthew Henry on 2 Samuel 2:18-24
We have here the contest between Abner and Asahel. Asahel, the brother of Joab and cousin-german to David, was one of the principal commanders of David's forces, and was famous for swiftness in running: he was as light of foot as a wild roe (Sa2 2:18); this he got the name of by swift pursuing, not swift flying. Yet, we may suppose, he was not comparable to Abner as a skilful experienced soldier; we must therefore observe,
I. How rash he was in aiming to make Abner his prisoner. He pursued after him, and no other, Sa2 2:19. Proud of his relation to David and Joab, his own swiftness, and the success of his party, no less a trophy of victory would now serve the young warrior than Abner himself…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Samuel 2:19
ASAHEL SLAIN. (Sa2 2:19-32)
Asahel pursued after Abner--To gain the general's armor was deemed the grandest trophy. Asahel, ambitious of securing Abner's, had outstripped all other pursuers, and was fast gaining on the retreating commander. Abner, conscious of possessing more physical power, and unwilling that there should be "blood" between himself and Joab, Asahel's brother, twice urged him to desist. The impetuous young soldier being deaf to the generous remonstrance, the veteran raised the pointed butt of his lance, as the modern Arabs do when pursued, and, with a sudden back thrust, transfixed him on the spot, so that he fell, and lay weltering in his blood. But Joab and Abishai contin…
Read the whole note in the consoleAdam Clarke on 2 Samuel 2:21
Take thee his armor - It seems Asahel wished to get the armor of Abner as a trophy; this also was greatly coveted by ancient heroes. Abner wished to spare him, for fear of exciting Joab's enmity; but as Asahel was obstinate in the pursuit, and was swifter of foot than Abner, the latter saw that he must either kill or be killed, and therefore he turned his spear and ran it through the body of Asahel. This turning about that he might pierce him is what we translate "the hinder end of his spear." This slaying of Asahel cost Abner his life, as we shall find in the next chapter.